1 files changed, 6 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index da52269aec1e..e6fca6a9014d 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -343,7 +343,12 @@ syscall_dotrace:
         stw     r0,_TRAP(r1)
         addi    r3,r1,STACK_FRAME_OVERHEAD
         bl      do_syscall_trace_enter
-        lwz     r0,GPR0(r1)     /* Restore original registers */
+        /*
+         * Restore argument registers possibly just changed.
+         * We use the return value of do_syscall_trace_enter
+         * for call number to look up in the table (r0).
+         */
+        mr      r0,r3
         lwz     r3,GPR3(r1)
         lwz     r4,GPR4(r1)
         lwz     r5,GPR5(r1)